docs: def gather_facts_list(self, file):
          """
          Return a list of facts.
          """
          facts = []
  
          contents = utils.file_to_string(os.path.join(self.paths["role"],
                                          file))
          contents = re.sub(r"\s+", "", contents)
          matches = self.regex_facts.findall(contents)
  
          for match in matches:
              facts.append(match.split(":")[1])
  
          return facts